What is the image of the point (1, 2) on the line `3x+4y-1=0` ?

The image of the point (1, 3) in the line x + y-6 = 0 is

The image of the point (1,3) in the line x+y-6=0 is

The image of the point (1, 3) in the line x + y-6 = 0 is

Find the image of the point P(1, 2) in the line x-3y+4=0

then image of the point (-1,3,4) in the plane x-2y=0

then image of the point (-1,3,4) in the plane x-2y=0

the image of the point (-1,3,4) in the plane x-2y=0

Assuming that straight line works as the plane mirror for a point, find the image of the point (1, 2) in the line x-3y+4=0.